1996

6.4

2005

2.0

2018

0.0

1997

4.5

2001

5.0

1997

7.7

2001

6.5

2008

5.7

1984

6.9

2005

3.5

1992

5.8

2004

4.5

2002

6.5

2006

0.0

2006

4.3

1999

7.0

1978

5.8

2001

0.0

2006

7.2

2020

1.0

2015

6.6

1995

4.3

2006

5.7

1995

7.8

2009

0.0